Most Emission-Efficient Bulk Carriers

Ships ranked by AER (Annual Efficiency Ratio) — grams of CO₂ emitted per tonne of deadweight carried one nautical mile (g CO₂/dwt·nm), the IMO carbon-intensity metric behind the CII rating — from official EU MRV emissions data for reporting year 2024. Lower is greener. Pick a segment and size class to see the greenest vessels first.

Segment rank (2024)

#586 of 3,531 bulk carriers

CO₂ intensity

3.4 g CO₂/dwt·nm

vs segment average (4.87)

-30% greener

Bulk Carrier Container Ship Oil Tanker Chemical Tanker Gas Carrier LNG Carrier General Cargo Vehicle Carrier Refrigerated Cargo Ro-Ro Cargo

Sort 🌱 Greenest first 🔧 Least efficient first — retrofit candidates

Size (DWT)

All sizes < 25,000 DWT 25k – 60k DWT 60k – 100k DWT 100k – 200k DWT > 200,000 DWT

Year

2025 2024

3,604

vessels ranked

1.42

greenest (g CO₂/t·nm)

4.65

segment median

#	Vessel	Size (DWT)	Built	Length	Main Engine	Carbon intensity — AER (g CO₂/dwt·nm)	Grade
559	AMO IMO 9296626	82,214	2006	229 m	MAN - 6S60MC	3.4	A
558	AFRICAN DRAGON IMO 9990416	66,647	2024	200 m	MAN-B&W 6S50ME-C9	3.4	A
557	POMONE IMO 9926130	82,247	2021	229 m	CSSC-MES Diesel Co. Ltd. 6S60ME-C10	3.4	A
556	ARETI.GR IMO 9789893	60,243	2017	200 m	Kawasaki - 6S50MC-C7.1TII	3.4	A
555	AQUAGEMINI IMO 9757010	60,238	2016	198 m	Diesel United - 6RT-flex50	3.4	A
554	HSL NASSAU IMO 9802310	63,805	2020	200 m	MAN - 6S50ME-B9	3.4	A
553	ANGLO JESSICA IMO 9490480	114,664	2006	255 m	MAN - 6S60MC-C	3.4	A
552	PEAK MATTERHORN IMO 9731822	81,060	2016	229 m	MAN - 6S60ME-C	3.4	A
551	SPAR CASTOR IMO 9719666	63,270	2018	200 m	MAN - 5S60ME-C8 Tier II	3.4	A
562	GOLDEN ERLING IMO 9955571	85,000	2024	227 m	China Shipbuilding Industry Co Diesel Engine Co Ltd 6S60ME-C10-HPSCR	3.4	A
561	CRIMSON KINGDOM IMO 9748033	84,860	2016	229 m	Mitsui - 6S60ME-C	3.4	A
563	DREAM STAR IMO 9582996	81,909	2014	229 m	MAN - 6S60MC-C	3.4	A
560	AQUAGEM IMO 9950909	82,292	2023	229 m	MAN - 6S60ME-C10	3.4	A
568	NAVIOS GALILEO IMO 9326536	76,596	2006	225 m	MAN - 6S60MC	3.4	A
565	OSHIMA JAPAN IMO 9872975	62,661	2021	200 m	—	3.4	A
564	NEW ASCENT IMO 9512290	82,179	2012	229 m	Mitsui - 7 S 50 MC-C	3.4	A
567	SKOMER ISLAND IMO 9573854	61,510	2010	200 m	Mitsui - 6S50MC-C	3.4	A
566	KONSTANTINOS D IMO 9972608	63,516	2024	200 m	MAN - 6G50ME-C9	3.4	A
576	NORD ANTARES IMO 9933224	82,258	2022	229 m	CSSC-MES Diesel Co. Ltd. 6S60ME-C10	3.4	A
571	AL KARAMA IMO 9801732	63,878	2019	200 m	Mitsui - 6S50ME-B9	3.4	A
577	ELATI IMO 9836490	81,746	2019	229 m	MAN - 6S60ME-C8	3.4	A
570	MAGMA INTEGRITY IMO 9967677	63,697	2022	200 m	STX Engine Co. Ltd. 6G50ME-C9-HPSCR	3.4	A
569	RICHARD OLDENDORFF IMO 9462366	121,354	2011	260 m	MAN - 6S60MC-C	3.4	A
575	CALYPSO V IMO 9381213	76,596	2007	225 m	Mitsui - 6S60MC	3.4	A
574	ARIES KARIN IMO 9894478	64,229	2021	200 m	MAN - 6S50ME-C9	3.4	A
573	AMALIA IMO 9770634	81,783	2019	229 m	Mitsui - 6S60ME-C8	3.4	A
572	MAROUDIO IMO 9815965	64,723	2022	200 m	MAN - 6S50MC-C	3.4	A
581	MEGHNA PIONEER IMO 9894466	64,276	2020	200 m	MAN - 6S50ME-C9	3.4	A
580	ROYAL HOPE IMO 9726762	81,011	2015	229 m	MAN - 6S60ME-C	3.4	A
582	YASA VENUS IMO 9848118	61,075	2019	200 m	MAN - 6S50ME-B9	3.4	A
579	SAKIZAYA DIAMOND IMO 9697868	81,938	2013	229 m	MAN - 6S60ME-C	3.4	A
585	CL GENEVA IMO 9911587	85,229	2021	230 m	MAN - 6S60ME-C10	3.4	A
584	KAMILLA OLDENDORFF IMO 9952452	82,245	2024	229 m	MAN - 6G50ME-C9	3.4	A
583	JIMMY T IMO 9782118	81,704	2017	229 m	Hitachi - 6S60MC-C	3.4	A
578	TRANSCENDEN STAR IMO 9928231	84,952	2022	227 m	CSIC Diesel Engine Co Ltd 6S60ME-C8-HPSCR	3.4	A
588	INCE ANADOLU IMO 9527271	76,619	2009	225 m	Hitachi - 6S60MC	3.4	A
590	MAGSENGER 10 IMO 9497268	115,301	2012	254 m	MAN - 6S60MC-C	3.4	A
587	KEY FUTURE IMO 9512329	82,099	2012	229 m	MAN - 7S50MC-C	3.4	A
593	MAMMA MIA IMO 9846548	60,446	2015	200 m	Mitsui - 6G50ME-B9	3.4	A
592	AXIOS IMO 9706542	81,960	2017	229 m	Hudong Heavy Machinery - 5S60ME-C8.2 (Tier II)	3.4	A
586	BELMAR IMO 9908475	63,641	2021	200 m	MAN - 6S50ME-B9	3.4	A
589	OCEAN TIME IMO 9848522	82,024	2019	229 m	DALIAN MARINE - 6S60ME-C8 (Tier II)	3.4	A
591	TIANA IMO 9317470	77,283	2008	225 m	Kawasaki - 5S60MC-C	3.4	A
600	AIANTAS IMO 9729879	81,111	2016	229 m	MAN - 6S60ME-C8	3.4	A
599	MYRTO IMO 9518086	82,131	2013	229 m	Mitsui - 6S60MC-C	3.4	A
598	SAKIZAYA CHAMPION IMO 9680360	78,080	2014	225 m	Mitsui - 6S60ME-C8.2	3.4	A
597	RB JAKE IMO 9765706	81,039	2016	229 m	Mitsui - 6S60ME-C	3.4	A
596	SHANDONG FU REN IMO 9748784	81,783	2018	229 m	MAN - 6S60ME-C8	3.4	A
595	SHARQI IMO 9964845	66,316	2023	200 m	MAN-B&W 6S50ME-C9	3.4	A
594	BESIKTAS KAZAKHSTAN IMO 9461271	169,263	2010	290 m	STX - 6S70MC-C	3.4	A

Page 12 of 71 — 3,531 vessels

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Engine intelligence

Which engines power the greenest fleets?

The main engine is the single largest CO₂ source on board — typically well over 80% of a ship's emissions come from propulsion. We aggregated this ranking the other way around: every engine design is scored by the measured carbon intensity of the vessels carrying it, licensee-built units merged under their design brand. The verdict from the 2024 data — modern dual-fuel designs like MAN B&W's ME-GI and WinGD's X-DF families, together with EGR/SCR-abated and ultra-long-stroke G-type engines, consistently power the most emission-friendly ships in service.

Emission-friendly engine ranking

AER (Annual Efficiency Ratio) = annual CO₂ emissions ÷ (deadweight × distance sailed), the IMO carbon-intensity metric used for CII ratings. It is built only from measured CO₂, distance and deadweight — not the self-reported cargo transport-work figure, which is unreliable. Implausible outliers (top 2% per segment) are excluded. Grade A–E reflects each vessel's rank within its segment. Source: EMSA THETIS-MRV.